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Pensions
 6 Months Ended
Sep. 30, 2021
Pensions [Abstract]  
Pensions
Note 5: Pensions

Pension cost included the following components:

  
Three months ended
September 30,
    
Six months ended
September 30,
  
   
2021
    
2020
    
2021
    
2020
  
Service cost
  
$
-
    
$
0.1
    
$
0.1
    
$
0.2
  
Interest cost
    
1.9
      
1.9
      
3.7
      
3.9
  
Expected return on plan assets
    
(3.2
)
    
(2.8
)
    
(6.4
)
    
(5.7
)
Amortization of unrecognized net loss
    
1.7
      
1.8
      
3.4
      
3.5
  
Net periodic benefit cost
  
$
0.4
    
$
1.0
    
$
0.8
    
$
1.9
  

During the six months ended September 30, 2021, the Company contributed $3.5 million to its U.S. pension plans.